Oil burner



"May 6', 1930. w i. E. SMITH 1,757,023

OIL BURNER Filed oct. 2o, 1926 HVVENTOR.

Ira E. Smith ATTORNEY 6 y .9 BY@ um Shaving no moving parts but-,provided with.

- any tendency toV ch'okeyup.

iss

Patented May 6, `I1930 .13A E. siirrrigorV srocxmoirfcanronma r" i GIL .Brama application 1doetobe`r.eo,j1a2s. seriai-No. 142,814. s*

This invention relates to improvements in oil burners of thetypein which theA Oily is mixed while in the burnerwi'thf agaseous fluid suche-s air vor steam, my principal object being to provide a burnerl of this type vmay be readily disassociatedfromeach other for cleaning and ,inspection purposes `and in which the oil line can be easily blown out by fluid pressure whenever necessary to relieve A further object V1s kto ,provide a l simple,

lcompact and inexpensive unitsuchas may be'readily inserted and usedin any rebox,

, Y veither* in a horizontal or a vertical positionV s Without having to make any alterationsin the reboX.

A further advantage of thisburneris that it will operate eilciently either with vhigh or low fluid pressure, as long as the fluid under the latter conditions, is provided in sufficient volume.

These objects I accomplish by means of such structure and relative arrangement of parts as will fully appear byja perusal of the Y following specication and claim.

In the drawings similar characters of reference indicate corresponding parts in the several views: f

` Y Fig. 1 is a sectional elevation of'my improved burner.

Fig. 2 is a top plan View of al disc having passages vtherethrough arranged 'to create a whirling action. n l f Fig. 3 is a cross section on theline 3 3 of Fig. 1. Figi is a fragmentary section showing a modied form of outlet head-opening construction. Y y

Referring now more particularly to the ranged at its opposie ends for connection to or vsteamfand latter for oil. The pipe 3 `^coinniunicates with [a passage 4; formed .in

-thebody separate from the main chambery 5 `which communicates with the passage 2, said passage '4; terminating in' a boss 6 whose inner end rfacesin adirection at rightangles.' to said pipes. y Removahly securedfin the inner end of the boss is a pipe f7,ncommunicating -with thepassage 4 and provided with 4a rowv of, radial. holes 8.--near-,its .opposite end.v

Beyond the holes the pipe is capped by an in-J verted rusto-conical'` membery 9. Surroundf `ing the pipe 7 i and the cap in spaced and concentric relation theretois a cylindrical casl ing 10. Thismembermayl'be formed inte- ,s gral with the body'fl if desired'but is prefj erably removably Vsecured thereto and in any .event communicates freely 'with the Jbody chamber 5. j The diameter yof the casing 10 is suchthatwhile it isconsiderablyspaced from thepipe 7 itis. somewhat close to the upper `and large.V end ,of thecap 9 so y as to 'form a restrictedV passage y therepast.

A. certain distanceabovethecap the cas! ing is enlarged toform YaV seat 11- for a disc 12. discis Vprovidedwitli a number of holes 13' therethrough, .which lare grouped symmetrically aboutfthecenter of the disc andare set ata decided angle to the axis of said disc, as plainly. shown inFrig.v 1. This vdisc is removably'clamped in placeby means of. a headlll-screwed vonto the outer end of. thecasing `and .having a shoulder 15. which engages` a vring vvgasketl which in turn engagessaid disc adjacent its rim.` The head 1s hollow, theiinteriorarea beingpsubstantially cone shaped, andthe sides converging Ifrom adjacent the rim of the discto a relajtivelyl small outlet opening 1"( disposed aty .the outer .endoi' the headconcentric withk the disc. @The vouter surface of the head is also 'romtlieoutlet and being so disposedrela- `preferablycone-shaped, the sides. diverging wallsl'approach` very Vclose'at theaoutlet, soA

characters of reference on the drawings, the f that the latter iS Very ShallOWfIl depth! numeral 1 denotes a T`shaped fitting ar-V A'small passage1`8 leads from the chamber 5 facing the pipe 2 tothe"` oil passagey'll, a

pipes 2 and 3, the former for compressed air 'lnormally.closedhand 'peratedfneedle valve escape from the pipe 17 through the holes.8,`

where it is immediately eXpose'drto and caught up by the" air or steam moving toward the outlet 17. The oil before reaching said Vout-l let must of course pass the restricted pas-A sage between the casing 10 and the cap 9,;

which passage prevents a great volume of the relatively heavy oil passing' through at 'one-time.v The oil can thereforepass through said passageonly in the form of a thin sheet which is exposed to a relatively great quantity of the steam or air,'and hence readily becomesmingled with the* same. The passage of the mixture through the slanting holes in the disc causes a whirling motion to be automatically iinp'artedito the mixture by the time the head cavity is reached, thereby of course aiding inthe thorough mixing `of theelements.` The mixture issuing from the disc holes is thrown against thesides of the head cavity, whichcauses a further whirling and mingling of the oil and'uid to be had before the mixture passesfthrough the final outlet 17. Owingto the'whirling ofthe mixy ture while in the head, the mixture upon issuing from said head will still have a whirlingmotion, since the outlet17 is too shallow or short to destroy this whirling motion to any The mixture will-'therey fore spread in cone-shaped form after leav- Y ing the head and will thusgive a lire of largeV lY appreciable extent.

areal with the use of a comparatively small 7 amount ofoil'. The passage '18' and needle valve 19'enable'the oilline to be blown out .by the steam or air at any time when necessary, if from the operation of the .device it appears that said oil line is becoming choked up. A

` The vspace between the casing 10 and cap 9, while restricted relative to the space there- Vbelow,is of sufficient area relative to the open- 'ings inthe Vdisc aboveas to prevent'any back A n pressure in the casing beingY formed.'

The construction of the outlet head as above desc-ribedis suitable for small burners.

that the actual discharge opening is in the forni of a narrow ring. The size of the v opening 17a and that of the stem 20 are so pro- -portioned as to cause the area of the ring-like opening to be the same as would be had with a single circular hole proportionate -to the size ofthe parts of the burner as a l whole.

- From the foregoing description it will be readily seen that Ihave produced such a devicevas substantiallyfulfills the objects of the invention 'as ,setforthV herein.

glhile thisr specification sets lforth-in detail 'the present'and preferred construction of the i device, still-in practice such deviations from v such detailmay be resorted to as donot form al departure fromthespir'it of the invention,

as defined bythe appended claim. f f

Y VHaving thus described my invention what I claim as new and useful and byLetters Patent is:V -j l' y An oil` burner including a ,straight-sided casing, a disc across the same adjacent its outer end, saidv disc-having'angularly disdesire to secure periphery, an oil pipe extending into the casing,fa cap on thepipe terminating 'in' spacedrelation to the disc, the cap diverging outwardly from the pipe in a continuous straight line' to its outerend and yterrninatp ing inA close but spaced-relation to the wall 'r posed passages therethrough inwardly of its ofthe casingto `.forma restricted passage, the v pipe having openingsujunder'the cap, anda j nozzlemember'mounte'd'onthe casing out-V Y y wardly Yof therdiscrV In testimonywhereof I afliX 'my signature.'

f SMITH` 3 In large burners, while the sizesandareas v of the differentk parts are proportionately Y. j

greater, a single'large ldischarge xopening cannot be used, since such an opening would f -not give the restrictionof the iiow of the mixtureA therethrough necessaryxto prevent the A oil from separating from the air Ior steam. `@InA such cases therefore I` provide-the con# y struction shown in Fig. 4. In rthis construc- Y j. ,Y tion, the head 14a. isprovided with'the cen- :tr'al outletopening 17 rand lthe oriiced disc 12@ seated in the easing 10ihas lan yupv'vardly projectingA stemQOaextending into the opening 17a in concentric relatioirtherewith, so

iicu 'i 

